Update Notebooks (aimacode#629)

* Update notebook.py

- remove duplicate psource
- add section headers
- add mdp visualization code

* Update nlp_apps.ipynb

* Update csp.ipynb

* Update mdp.ipynb

* Update games.ipynb

Author: antmarakis

csp.ipynb

@@ -18,6 +18,7 @@
    "outputs": [],
    "source": [
     "from csp import *\n",
+    "from notebook import psource, pseudocode\n",
     "\n",
     "# Needed to hide warnings in the matplotlib sections\n",
     "import warnings\n",
@@ -51,12 +52,10 @@
   {
    "cell_type": "code",
    "execution_count": null,
-   "metadata": {
-    "collapsed": true
-   },
+   "metadata": {},
    "outputs": [],
    "source": [
-    "%psource CSP"
+    "psource(CSP)"
    ]
   },
   {
@@ -106,12 +105,10 @@
   {
    "cell_type": "code",
    "execution_count": null,
-   "metadata": {
-    "collapsed": true
-   },
+   "metadata": {},
    "outputs": [],
    "source": [
-    "%psource different_values_constraint"
+    "psource(different_values_constraint)"
    ]
   },
   {
@@ -142,12 +139,10 @@
   {
    "cell_type": "code",
    "execution_count": null,
-   "metadata": {
-    "collapsed": true
-   },
+   "metadata": {},
    "outputs": [],
    "source": [
-    "%psource MapColoringCSP"
+    "psource(MapColoringCSP)"
    ]
   },
   {
@@ -184,12 +179,10 @@
   {
    "cell_type": "code",
    "execution_count": null,
-   "metadata": {
-    "collapsed": true
-   },
+   "metadata": {},
    "outputs": [],
    "source": [
-    "%psource queen_constraint"
+    "psource(queen_constraint)"
    ]
   },
   {
@@ -202,12 +195,10 @@
   {
    "cell_type": "code",
    "execution_count": null,
-   "metadata": {
-    "collapsed": true
-   },
+   "metadata": {},
    "outputs": [],
    "source": [
-    "%psource NQueensCSP"
+    "psource(NQueensCSP)"
    ]
   },
   {
@@ -475,34 +466,28 @@
   {
    "cell_type": "code",
    "execution_count": null,
-   "metadata": {
-    "collapsed": true
-   },
+   "metadata": {},
    "outputs": [],
    "source": [
-    "%psource mrv"
+    "psource(mrv)"
    ]
   },
   {
    "cell_type": "code",
    "execution_count": null,
-   "metadata": {
-    "collapsed": true
-   },
+   "metadata": {},
    "outputs": [],
    "source": [
-    "%psource num_legal_values"
+    "psource(num_legal_values)"
    ]
   },
   {
    "cell_type": "code",
    "execution_count": null,
-   "metadata": {
-    "collapsed": true
-   },
+   "metadata": {},
    "outputs": [],
    "source": [
-    "%psource CSP.nconflicts"
+    "psource(CSP.nconflicts)"
    ]
   },
   {
@@ -515,12 +500,10 @@
   {
    "cell_type": "code",
    "execution_count": null,
-   "metadata": {
-    "collapsed": true
-   },
+   "metadata": {},
    "outputs": [],
    "source": [
-    "%psource lcv"
+    "psource(lcv)"
    ]
   },
   {
@@ -680,12 +663,10 @@
   {
    "cell_type": "code",
    "execution_count": null,
-   "metadata": {
-    "collapsed": true
-   },
+   "metadata": {},
    "outputs": [],
    "source": [
-    "%psource tree_csp_solver"
+    "psource(tree_csp_solver)"
    ]
   },
   {
@@ -1163,15 +1144,6 @@
     "a = widgets.interactive(visualize_callback, Visualize = visualize_button, time_step=time_select)\n",
     "display(a)"
    ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": null,
-   "metadata": {
-    "collapsed": true
-   },
-   "outputs": [],
-   "source": []
   }
  ],
  "metadata": {
@@ -1190,7 +1162,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.5.2+"
+   "version": "3.5.3"
   },
   "widgets": {
    "state": {},